Wehrli 81-87 GMC/K Square Body Truck Intercooler & Radiator Kit for Duramax Swap
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The WCFab Intercooler and Radiator Kit is engineered for upgrading a classic 1981-1987 3/4 or 1 Ton GM C/K Square Body Truck(Chevy C20, C30, K30) with a 6.6L Duramax diesel engine conversion. Developed and tested on our own Duramax swapped Square Body shop truck, this kit provides a clean, proven solution for mounting a high-performance radiator and intercooler in your build. Featuring a specially modified Griffin Dual Row Aluminum Radiator with Dual 16-inch Electric Fans (2148 CFM total) and an Aluminum Shroud, along with a customized Vibrant Performance Intercooler / charge air cooler, this kit is designed to keep coolant and intake air temperatures under control on your diesel swap. The radiator inlet and outlet have been modified by our fabrication team to match the OEM Duramax specifications for ease of installation. Kit includes CAD designed, laser cut, CNC bent raw steel upper and lower core support mounting brackets ready for painted or powder coated in the color of your choice after installation.
- Griffin 28” x 19” Dual Row Aluminum Radiator with Dual Electric 16-inch Fans (2148 CFM total) and Aluminum Shroud
- Vibrant Performance 3.5” Thick 12” x 25” Intercooler with 3” Inlet and Outlet with HD Bead Roll Flanges
- Precision Engineered, Laser Cut and CNC bent steel upper and lower core support mounting brackets
- Inlet and Outlet of Radiator Modified to Match Duramax OEM Spec
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1981 | Chevrolet | C20 | Cheyenne |
| 1981-1986 | Chevrolet | C20 | Custom |
| 1981 | Chevrolet | C20 | Deluxe |
| 1981-1986 | Chevrolet | C20 | Scottsdale |
| 1981-1986 | Chevrolet | C20 | Silverado |
| 1981-1986 | Chevrolet | C20 Suburban | Custom |
| 1981 | Chevrolet | C20 Suburban | Deluxe |
| 1982,1984-1986 | Chevrolet | C20 Suburban | Scottsdale |
| 1982-1986 | Chevrolet | C20 Suburban | Silverado |
| 1981 | Chevrolet | C30 | Cheyenne |
| 1981-1986 | Chevrolet | C30 | Custom |
| 1981 | Chevrolet | C30 | Deluxe |
| 1981-1986 | Chevrolet | C30 | Scottsdale |
| 1981-1986 | Chevrolet | C30 | Silverado |
| 1981 | Chevrolet | K20 | Cheyenne |
| 1981-1986 | Chevrolet | K20 | Custom |
| 1981 | Chevrolet | K20 | Deluxe |
| 1981-1986 | Chevrolet | K20 | Scottsdale |
| 1981-1983,1985-1986 | Chevrolet | K20 | Silverado |
| 1981-1986 | Chevrolet | K20 Suburban | Custom |
| 1981 | Chevrolet | K20 Suburban | Deluxe |
| 1982,1984-1986 | Chevrolet | K20 Suburban | Scottsdale |
| 1982-1983,1985-1986 | Chevrolet | K20 Suburban | Silverado |
| 1981 | Chevrolet | K30 | Cheyenne |
| 1981-1986 | Chevrolet | K30 | Custom |
| 1981 | Chevrolet | K30 | Deluxe |
| 1981-1986 | Chevrolet | K30 | Scottsdale |
| 1981-1986 | Chevrolet | K30 | Silverado |
| 1987 | Chevrolet | R20 | Custom Deluxe |
| 1987 | Chevrolet | R20 | Scottsdale |
| 1987 | Chevrolet | R20 | Silverado |
| 1987 | Chevrolet | R20 Suburban | Custom Deluxe |
| 1987 | Chevrolet | R20 Suburban | Scottsdale |
| 1987 | Chevrolet | R20 Suburban | Silverado |
| 1987 | Chevrolet | R30 | Custom Deluxe |
| 1987 | Chevrolet | R30 | Scottsdale |
| 1987 | Chevrolet | R30 | Silverado |
| 1987 | Chevrolet | V20 | Custom Deluxe |
| 1987 | Chevrolet | V20 | Scottsdale |
| 1987 | Chevrolet | V20 | Silverado |
| 1987 | Chevrolet | V20 Suburban | Custom Deluxe |
| 1987 | Chevrolet | V20 Suburban | Scottsdale |
| 1987 | Chevrolet | V20 Suburban | Silverado |
| 1987 | Chevrolet | V30 | Custom Deluxe |
| 1987 | Chevrolet | V30 | Scottsdale |
| 1987 | Chevrolet | V30 | Silverado |
| 1981-1986 | GMC | C2500 | Base |
| 1981-1986 | GMC | C2500 | High Sierra |
| 1981-1986 | GMC | C2500 | Sierra Classic |
| 1981-1982 | GMC | C2500 | Sierra Grande |
| 1981-1986 | GMC | C2500 Suburban | Base |
| 1981-1986 | GMC | C2500 Suburban | High Sierra |
| 1981-1986 | GMC | C2500 Suburban | Sierra Classic |
| 1981-1982 | GMC | C2500 Suburban | Sierra Grande |
| 1981-1986 | GMC | C3500 | Base |
| 1981-1986 | GMC | C3500 | High Sierra |
| 1981-1986 | GMC | C3500 | Sierra Classic |
| 1981-1982 | GMC | C3500 | Sierra Grande |
| 1981-1986 | GMC | K2500 | Base |
| 1981-1986 | GMC | K2500 | High Sierra |
| 1981-1986 | GMC | K2500 | Sierra Classic |
| 1981-1982 | GMC | K2500 | Sierra Grande |
| 1981-1986 | GMC | K2500 Suburban | Base |
| 1981-1986 | GMC | K2500 Suburban | High Sierra |
| 1981-1986 | GMC | K2500 Suburban | Sierra Classic |
| 1981-1982 | GMC | K2500 Suburban | Sierra Grande |
| 1981-1986 | GMC | K3500 | Base |
| 1981-1986 | GMC | K3500 | High Sierra |
| 1981-1986 | GMC | K3500 | Sierra Classic |
| 1981-1982 | GMC | K3500 | Sierra Grande |
| 1987 | GMC | R2500 | Base |
| 1987 | GMC | R2500 | High Sierra |
| 1987 | GMC | R2500 | Sierra Classic |
| 1987 | GMC | R2500 Suburban | Base |
| 1987 | GMC | R2500 Suburban | High Sierra |
| 1987 | GMC | R2500 Suburban | Sierra Classic |
| 1987 | GMC | R3500 | Base |
| 1987 | GMC | R3500 | High Sierra |
| 1987 | GMC | R3500 | Sierra Classic |
| 1987 | GMC | V2500 | Base |
| 1987 | GMC | V2500 | High Sierra |
| 1987 | GMC | V2500 | Sierra Classic |
| 1987 | GMC | V2500 Suburban | Base |
| 1987 | GMC | V2500 Suburban | High Sierra |
| 1987 | GMC | V2500 Suburban | Sierra Classic |
| 1987 | GMC | V3500 | Base |
| 1987 | GMC | V3500 | High Sierra |
| 1987 | GMC | V3500 | Sierra Classic |
